<AWT Dev> [8] Review request for JDK-8029263, , The user's default browser can not launch after we click the button, and there is an IOException shown in the log txt (java.io.IOException)

[Alexander Zvegintsev]

Hello AWT team,

Please review fix
http://cr.openjdk.java.net/~azvegint/jdk/8/8029263/webrev.00/
for
https://bugs.openjdk.java.net/browse/JDK-8029263

This issue can be observed on Solaris 11 (sparcv9 or x86_64).

gtk_show_uri() documentation[1] says:
> The uri must be of a form understood by GIO (i.e. you need to install 
> gvfs to get support for uri schemes such as http:// or ftp://, as only 
> local files are handled by GIO itself).
However it looks like that Solaris 11 supports gvfs for 32-bit 
applications only by default. gtk_show_uri() returns "Operation not 
supported" error message  for 64-bit applications
for schemes other than file://.

Since b110 we don't have 32-bit JDK for Solaris anymore, so in most 
cases only an OPEN action is available(file://).

Currently I am unable to find any robust way to determine do we have 
full gvfs support to handle URIs like mail:, http:// or not.

We can use g_vfs_get_supported_uri_schemes()[2] and assume that we have 
full gvfs support if  http:// scheme is present.
But this function depends on a DBUS_SESSION_BUS_ADDRESS environment 
variable, which can be stripped off in some tests
(in this case only file:// scheme will be returned).


Old gnome_url_show() will not work  too due to lack of 64-bit 
libgnomevfs-2.0 library.



[1] 
https://developer.gnome.org/gtk2/stable/gtk2-Filesystem-utilities.html#gtk-show-uri
[2] 
https://developer.gnome.org/gio/stable/GVfs.html#g-vfs-get-supported-uri-schemes 


-- 
Thanks,

Alexander.

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